National 450867 Engine Crankshaft Seal - Front

National 450867 Front Engine Crankshaft Seal

National 450867 is a front engine crankshaft oil seal built for applications that require a precise shaft-to-housing seal. It uses nitrile sealing material and Redicoat treatment to support reliable sealing performance in service. This oil seal is listed for Jaguar XJ12, XJS, and XJRS front applications.

Key Features

• Part number 450867 front crankshaft seal for engine sealing service
• Nitrile sealing material for oil resistance in crankshaft seal applications
• Redicoat finish for improved sealing surface contact
• Inside diameter: 2.125 in. / 53.980 mm
• Outside diameter: 2.879 in. / 73.130 mm
• Thickness/width: 0.437 in. / 11.100 mm
• Housing bore: 2.875 in. / 73.030 mm
• Type 45 oil seal, Series 450000

Detailed Description

National 450867 is an engine crankshaft seal engineered as a front oil seal for select Jaguar vehicles. The seal dimensions are specified for a 2.125-inch shaft and a 2.875-inch housing bore, helping ensure the seal seats correctly in the engine cover or housing. With nitrile construction and a 0.437-inch width, this National oil seal is suited for front crankshaft sealing where stable oil control is required. This part cross-references Remy 21098 for the same application.

Compatible With 1973-1979 Jaguar XJ12, front; 1994-1996 Jaguar XJ12, front; 1976-1992 Jaguar XJS, front; 1994-1995 Jaguar XJS, front; and 1993 Jaguar XJRS, front. If you are replacing a leaking front crankshaft seal on a Jaguar XJ12 or Jaguar XJS, National 450867 provides the dimensional match needed for the repair.

What It Helps Address

• Front crankshaft oil leakage at the engine seal area
• Oil seepage around the crankshaft snout
• Loss of sealing performance from a worn or hardened seal
• Contamination of surrounding engine components from escaping oil
• Service replacement for a damaged front oil seal

Installation Notes and Tips

Confirm shaft diameter, housing bore, and seal width before installation. Inspect the crankshaft sealing surface for wear, scoring, or corrosion, since surface damage can affect seal life. Clean the bore and sealing area thoroughly, and install the seal squarely to avoid distortion. Verify front-position fitment against the vehicle application before assembly.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing products for modern vehicle service needs. Part number 450867 reflects that long-running focus on engine sealing accuracy and dimensional consistency.